I agree that the idea of launching an object into the sun like an arrow or a bullet is not necessary. I have said so repeatedly. Also, the NASA scientists are correct. You must spend energy to change an orbit. They do not decay spontaneously. I’m happy you can take some comfort in the knowledge that, when the sun grows large enough to smash into the earth - not when the orbit destabilizes - you will in some sense have been correct. Wait long enough, and the sun will fall into you.